... sizes. (3) Substituted with concrete nails or Masonry nails Pneumatic ST Nail 1) Unique design, efficient, good quality, widely used.2 ... , heat treatment, surface treatment, packaging, energy, power and other equipment, total assets of 50 million RMB yuan. The Group has 4 ... , and with 12,000 tons of annual output. Pneumatic Concrete ST Nail